Steam-generating system for locomotives



J.'P. BADENHAUSEN. STEAM GENERATING SYSTM FOR LOCOVIOTIVES.

APPLICA] {Ow' FILED APR Pzptexl'ed M1124, 192;

2 SHEETSv-SHEET IA WITNESS ffy- 1. P. BADENHAUSEN. STEAM GENERATING SYSTEM FOR LOCOMOTIVES.

APPLlcATloN FILED APR. 3o, 1919.

Patented Jan. 24, 1922.

2 SHttI`S-SHEET 2A MNl WEI'.

ATTQRNEYS PATENT-f orifice.

' J'oHN RBADENHAUSEN. 'ercrnxtafpnrrma PENNSYLVANIA.

, s'rnA'N-euaNnaajijINeEivisjinnirv ron Locomozrrvns.

2To all whom it may concern: .i

'Be i` known that I, JOHN P. BADEN- HAUsEN, a citizen of the United States, and a resident of the city of Philadelphia,

county of Philadelphia, State of Pennsyl- Vania," have invented certain new and useful Improvements in Steam-Generating Sys.- tems for Locom'otives,4 of whichfthe following is a speciicatiom'reference being had to the accompanying drawings, forming a part hereof.

My inventionlrelatesto al steam` generating system of the water tube type adapted to be employed'in adocomotive, and more partieularly, relatesjto a generatorcomprising mizer or preheater' section arranged to receive and absorb the heat of the products of combustion lafter passing from the water tubeboiler section and prior to escaping through the smoke staek.-

My invention `comprehends the videa of using a water tube boiler located in the furnace portion of the locomotivewhere a very rapid generation of steam may be secured and an economizer or preheater section in the forward portion of the locomotive comprising auxiliary steam and water drums conectedby a set of tubes located in the path of the hot gases owing from the boiler section to the smoke stack, whereby in addition to the generation 'of steam secured in the 'water tube boiler section, I am also enabled to absorb additional heat from the hot gases which-.otherwise would be totally lost. In this manner the water in the auxiliary system may be.v heated very much in the samev manner as fwater is usually heated in an economizer. The water portion of the aux-- tubes of the auxiliary system, the generation-f' in the latter being affected by the contact ofthe hot gases with the last mentioned tubes as they pass from the boiler section to the smoke stack. vIn this manner I amv enabled to provide in a locomotive a generator com-.`

prising a water tube boiler, an economizer and an auxiliary steam generatmg means,

-ing uch further objects and advantages as a water tube boiler section and an econo- Srcigcetioxigo'fI-,ettlersliefert Patented J an. 24, 1922.- Appucauo inea vAin-fiati, 191e.` seal No.' :cassa "fthe latter two being combined into asingle unitary device.

My invention, therefore, has -for its ob- ]ect 4the provision, in a locomotive, of a generator comprising a water tube boiler combined with supplementary .heating means to economize heat from the escaping hot gases. Another object is to provide the steam generating plant with greatly increased heating surface and consequently to Aconsiderably increase the capacity and the -economy thereof.- A still further object is to materially reduce the weight of the heatplant.

may arise from my improved structure will more fully appear from the following speci- A ication. f

`In the drawings in whic I have shown the preferred form orembodiment of my invention; A

Fig. l is a longitudinal vertical sectional v-iew through a locomotive including my in'- vention;

Fig. 2 is a transverse section on line 2 2 of Fig. l;

. Fig. 3 is a transverse section of the economizing unit'taken on the line 3--3 of Fig. l; and, i

Fig. 4 is a top plan and grate with a section.

Referring now more particularly' to the drawing, I have shown in general a locomotive 1 of the usual outside structure thesame being provided at the rear portion'thereof with a water tube boiler 2. This boiler comprises mlower water drum 3, an upper, or intermediate, water drum 4 and a steam drum 5, all of which are located in transverse relation to the length of the locomotive andvin triangular arrangement-- `The water drums 3 and 4 are connected by a bank of view of the mud ring portionshown in broken fire and adapted to receive the direct contact of the flames in the fire box. "The upper or intermediate water drum 4 and the-steam drum 5 are also connected by a bank of pipes or .tubes 7 in inclined position and are adapted to be contacted with the flames as they pass from the first bank of pipes 6 and are deflected by the ii'e bridge or wall 8 to the upper portionV of Athe boiler space. The

`. pipes or tubes 6, these pipes being located A in .an inclined position immediately over the lower water drum 3 and the steam drum 5 are also connected by a third bank of pipes or tubes 9, arranged generally in a vertical position, adapted to be contacted with the hot gases after the same have passed by the fire bridge and through the pipes 7 prior to such gases passing forward to the other end of the locomotive. In this arrangement the bank of tubes 6, 7 and 9 are respectively successively contacted by the burning gases prior to their escape to the economizer section.

The fire box instead of being of the usual type, is surrounded by a plurality of tubes of which the tubes 10 and 10 form the side walls of the fire box, tubes 11 the rear wall and tubes 12 the front wall. All of these tubes, namely, 10, 1 0f, 1 1 and 12, are connected at their lower ends with the rectangular hollow mud ring 13. rIfhe rear short tubes 11 are connected at the upper ends thereof to the lower water drum 3 while of the side tubes 10 and 10 the same'are respectively connected at their upper ends to 25 the drums 4 and 5. Thefront tubes 12, however, all leadv from the mud ring 13 to the upper or intermediate water drum 4.',V The mud ring, it will be-lnoted, is supportedin any suitablemanner, a'sgiby.; the

cross pieces 14 and 15 and has included therein the usual set of. grate bars 16 suitably supported upon bracket members 17 and 18 secured to said cross pieces and to the sides of the locomotive. l

rI he above structure constitutes the boiler portion of the locomotive where the primary generation of steam occurs and where the combustible constituents are undergoing theirmost intense action .in giving off heat to vthe several tubes presented in the path thereof. v

At the forward portion of the locomotive between the boiler portion described above and the smoke stack 1, I have arranged a device which is in the nature of a combination steam generating and economizing means vand comprises a steam drum 19 and a Water drum 20, both arranged longitudinally of the locomotive with the steam drum located at the top and the water drum at the bottom and connected at the ends thereof respectively with the steam drum 5 and the y,with the leg of the T extending longitudinally along the top of the locomotive between the boiler and the smoke stack. The

water drums 3 and 20 form a similar structure and are located below and parallel tothe other. Both of the drums 19 and 20 are connected 'v with a plurality of tubes 21 so located that the same shall be contacted by the hot gases smoke stack is located. The normal water level in the drums 5 and 19 is above the upper ends of these tubes .in order that proper circulation may be affected therein.

The steam drum 19 is provided internally thereof with a suspending bracket 22 utilized to support the steam conduit 23 with v its inner end thereof upwardly bent to receive the steam from said drum and to convey the same to the throttle 24 suitably secured to the outside forward 'end of the steam drum 19. From this throttle a pair of steam conduits 25 may lead .to the respective sides of the locomotive to the cylinders 26 located at both sides of the locomotive.

It will be noted that both the boiler and the economizer or preheater section are covered or surrounded by a protective wall 27, of any suitable material, which is further covered by heat insulating material 28 com-v pletely surrounding said lwall 27 to incase o r enclose s aid boiler and economizer or preheater section. i

It will be noted that at the rear .of the fire box or furnace a space is provided op posite the fire door 29 by omission of a few vtubes in the front wall comprising tubes 12 to permit the introduction of fuel'within the furnace.

In operation thev fuel is introduced through the fire door 9 into the fire box or furnace upon the grate 16 where combustion. occurs, the hot gases arising therefrom passing upwardly through the several banks of pipesl 6, 7 and 9, delivering a portion of the heat thereof to said pipes and the water con-, tained therein in generating the same into steam at a comparatively rapid rate. The iiames and hot gases are deflected by the bridge wall,8 to directtheflames upwardly through the second bankof pipes 7 to also further deliver'up heatthereto in further generation of steam from the fluid containedA therein. As the gases are deflected from theL upper wall 30 of the boiler, the same 110 will be caused to pass forwardly through the third bank of pipes 9, where a still further generation of steam, from the water contained therein, may occur.

At this point, the gases, the heat of which has not been completely absorbed, flow among the large number of tubes 21 connected between the water drum 2O and the steam drum 19 and the further absorption of heat from said 'gases is utilized to heat the 120 water included in said tubes to partially generate steam therefrom which passes to the steamdrum 19 and to also heat the water therein as well as in the drum 20. The water so heated will be adapted to flow to the lower water drum 3 of the boiler for further heating in the furnace for generation into steam. In this way, this portion of the economizer or preheater section acts similarly to economizersin general use.' The 130 sired inthe lower feed water may be observed from the i above that the drums 19 and 20 and the tubes 21 constitute a device having the combined function of preheating water in the same manner as in an economizer and converting water into steam. In this manner, I have been able to considerably increase lthe eliiciency of the water tube boiler as well as maintaining a capacity that will meet the demands required of a boiler for locomotive service with the added advantage of the veryv rapid generation of steam by the use of a water tube boiler,

Vhile I have shown but one form of device illustrating my invention, it is to be unl derstood, however, that any other embodiment may be utilized to carry out the idea of the same without departing from the spirit of my invention nor from the scope of the appended claims.

Having claim and Patent i 1.. A steam generating system for locomotives, consisting of a water tube boiler comprising a water drum, an intermediate drum and a steam drum in triangular relation, a plurality of tubes connecting said drums, a furnace providedvwith walls constituted of tubes, a mud Vring connected to said tubes, the other ends of said tubes being connected to said drums and a supplementary steam generating and economizing water tube section comprising steam and water drums connected to said first mentioned steam and Water drums.

2. A steam generating system for locomotives, consisting-of a water tube boiler comprising transverse water, intermediate and steam drums, tubes connecting said drums, an economizer section comprising spaced Water and steam drums respectively condesire to lprotect by Letters nected to said Water drum and said steam drum of said boiler and a plurality of'tubes connecting said steam drum' and water drum thus described my invention, Iv

, Water drum,

of said economizer section and located in the path of the hot gases passing from said boiler to the smoke stack of said locomotive.

3. A steam generating system for locomotives, comprising a lower transverse drum, an upper transverse drum spaced from said lower drum, and an intermediate transverse drum spaced from said l'ower and upper drums, a 'bank of tubes connecting said lower and intermediate drums, a second bank of tubes connecting said intermediate and up-` per drums and a third bank of tubes connecting said upper and lower drums, a com,-v

bustion furnace provided with walls constituted of tubes, a mud ring at the lower portion of said furnace, said druins and said mud ring being connected by said tubes and an economizer element located adjaceiitto and connected to said boiler.

4. A steam generating system for locomotives, consisting of a water tube boiler cornprising transverse water, intermediate and steam drums arranged in triangular: relation, a plurality of tubes connecting said drums, a furnace provided with walls constituted of tubes, a mud ring connected to said tubes, the other'ends of said tubes being connected to said' drums, longitudinally disposed supplementary steam and water drums connected at an end thereof to intermediate portions of said iirst mentioned steam and water drums respectively and a plurality of water tubes connectingsaid supplementary steamand water drums.

tives, consisting of the combination of a water tube. boiler and a heat absorbing section connected thereto and adapted to heat water supplied to said boiler, said combined boiler4 and section comprising an upper T-shaped steam drum, av lower T-shaped an intermediate transverse drum, a pluralityof substantially parallel water tubes connecting said T-shaped drums and a plurality of inclined water tubes connecting said intermediate drum to said T- lshaped drums.

In witness whereof'I hereunto set my hand this 28 day of April, 1919.

JOHN P. BADENHAUSEN 

